No. It is not necessary to purchase bloom boosters. Save your money!
Our bloom formulas have been optimized to provide an exacting amount of phosphorus and potassium when following the directions on our Feed Charts.
If you do want to increase the amount of your bloom formula slightly to achieve an increase in phosphorus and potassium, typically a few extra mL of bloom per gallon of water is all you need. Remember to increase slowly and watch your plants closely.
Use our Nutrient Calculator for a customized feed regime specific to your needs!